Cilegon, July 24, 2025 - PT KSI & Group successfully held Marketing Communication & Marketing Strategy Training at Sapphire Meeting Room 3, The Royale Krakatau Hotel. This activity was attended by employees from PT KSI and Group, especially those with a background in Sales & Marketing. With an expert speaker, Mr. Edi Purnomo SE, MM, CPHRM, CHA, this event presents in-depth insights into the optimization of marketing communication and the latest strategies to support company success.